/Engine/Plugins/Slate/SlateScripting/Source/SlateScriptingCommands/Public/UICommandsScriptingSubsystem.h
Checks whether the given set is currently registered in the subsystem
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Editor Scripting | Commands | Sets") bool IsCommandSetRegistered ( [FName](API\Runtime\Core\UObject\FName) SetName ) const